knowledge/org.argeo.support.odk/src/org/argeo/support/odk/servlet/OdkFormListServlet.java

   1 package org.argeo.support.odk.servlet;
   2
   3 import java.io.IOException;
   4 import java.io.Writer;
   5 import java.util.Collections;
   6 import java.util.HashSet;
   7 import java.util.Set;
   8
   9 import javax.jcr.Node;
  10 import javax.jcr.NodeIterator;
  11 import javax.jcr.Property;
  12 import javax.jcr.Repository;
  13 import javax.jcr.RepositoryException;
  14 import javax.jcr.Session;
  15 import javax.jcr.query.Query;
  16 import javax.jcr.query.QueryResult;
  17 import javax.servlet.ServletException;
  18 import javax.servlet.http.HttpServlet;
  19 import javax.servlet.http.HttpServletRequest;
  20 import javax.servlet.http.HttpServletResponse;
  21
  22 import org.apache.commons.logging.Log;
  23 import org.apache.commons.logging.LogFactory;
  24 import org.argeo.api.NodeConstants;
  25 import org.argeo.cms.servlet.ServletAuthUtils;
  26 import org.argeo.entity.EntityType;
  27 import org.argeo.jcr.Jcr;
  28 import org.argeo.jcr.JcrxApi;
  29 import org.argeo.support.odk.OdkForm;
  30 import org.argeo.support.odk.OrxListName;
  31 import org.argeo.support.odk.OrxManifestName;
  32
  33 /** Lists available forms. */
  34 public class OdkFormListServlet extends HttpServlet {
  35         private static final long serialVersionUID = 2706191315048423321L;
  36         private final static Log log = LogFactory.getLog(OdkFormListServlet.class);
  37
  38         private Set<OdkForm> odkForms = Collections.synchronizedSet(new HashSet<>());
  39
  40 //      private DateTimeFormatter versionFormatter = DateTimeFormatter.ofPattern("YYYY-MM-dd-HHmm")
  41 //                      .withZone(ZoneId.from(ZoneOffset.UTC));
  42
  43         private Repository repository;
  44
  45         @Override
  46         protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
  47                 resp.setContentType("text/xml; charset=utf-8");
  48                 resp.setHeader("X-OpenRosa-Version", "1.0");
  49                 resp.setDateHeader("Date", System.currentTimeMillis());
  50
  51                 String serverName = req.getServerName();
  52                 int serverPort = req.getServerPort();
  53                 String protocol = serverPort == 443 || req.isSecure() ? "https" : "http";
  54
  55                 String pathInfo = req.getPathInfo();
  56
  57                 Session session = ServletAuthUtils.doAs(() -> Jcr.login(repository, NodeConstants.SYS_WORKSPACE), req);
  58 //              session = NodeUtils.openDataAdminSession(repository, NodeConstants.SYS_WORKSPACE);
  59                 Writer writer = resp.getWriter();
  60                 writer.append("<?xml version='1.0' encoding='UTF-8' ?>");
  61                 writer.append("<xforms xmlns=\"http://openrosa.org/xforms/xformsList\">");
  62                 boolean oldApproach = false;
  63                 if (!oldApproach) {
  64                         try {
  65
  66                                 Query query;
  67                                 if (pathInfo == null) {
  68 //                              query = session.getWorkspace().getQueryManager()
  69 //                                              .createQuery("SELECT * FROM [nt:unstructured]", Query.JCR_SQL2);
  70                                         query = session.getWorkspace().getQueryManager()
  71                                                         .createQuery("SELECT * FROM [" + OrxListName.xform.get() + "]", Query.JCR_SQL2);
  72                                 } else {
  73                                         query = session.getWorkspace().getQueryManager()
  74                                                         .createQuery(
  75                                                                         "SELECT node FROM [" + OrxListName.xform.get()
  76                                                                                         + "] AS node WHERE ISDESCENDANTNODE (node, '" + pathInfo + "')",
  77                                                                         Query.JCR_SQL2);
  78                                 }
  79                                 QueryResult queryResult = query.execute();
  80
  81                                 NodeIterator nit = queryResult.getNodes();
  82 //                              log.debug(session.getUserID());
  83 //                              log.debug(session.getWorkspace().getName());
  84 //                              NodeIterator nit = session.getRootNode().getNodes();
  85 //                              while (nit.hasNext()) {
  86 //                                      log.debug(nit.nextNode());
  87 //                              }
  88                                 while (nit.hasNext()) {
  89                                         StringBuilder sb = new StringBuilder();
  90                                         Node node = nit.nextNode();
  91                                         if (node.isNodeType(OrxListName.xform.get())) {
  92                                                 sb.append("<xform>");
  93                                                 sb.append("<formID>" + node.getProperty(OrxListName.formID.get()).getString() + "</formID>");
  94                                                 sb.append("<name>" + Jcr.getTitle(node) + "</name>");
  95                                                 sb.append("<version>" + node.getProperty(OrxListName.version.get()).getString() + "</version>");
  96                                                 sb.append("<hash>md5:" + JcrxApi.getChecksum(node, JcrxApi.MD5) + "</hash>");
  97                                                 if (node.hasProperty(Property.JCR_DESCRIPTION))
  98                                                         sb.append("<name>" + node.getProperty(Property.JCR_DESCRIPTION).getString() + "</name>");
  99                                                 sb.append("<downloadUrl>" + protocol + "://" + serverName
 100                                                                 + (serverPort == 80 || serverPort == 443 ? "" : ":" + serverPort) + "/api/odk/form/"
 101                                                                 + node.getPath() + "</downloadUrl>");
 102                                                 if (node.hasNode(OrxManifestName.manifest.name())) {
 103                                                         sb.append("<manifestUrl>" + protocol + "://" + serverName
 104                                                                         + (serverPort == 80 || serverPort == 443 ? "" : ":" + serverPort)
 105                                                                         + "/api/odk/formManifest" + node.getNode(OrxManifestName.manifest.name()).getPath()
 106                                                                         + "</manifestUrl>");
 107                                                 }
 108                                                 sb.append("</xform>");
 109                                         } else if (node.isNodeType(EntityType.formSet.get())) {
 110                                                 sb.append("<xforms-group>");
 111                                                 sb.append("<groupId>" + node.getPath() + "</groupId>");
 112                                                 sb.append("<name>" + node.getProperty(Property.JCR_TITLE).getString() + "</name>");
 113                                                 sb.append("<listUrl>" + protocol + "://" + serverName
 114                                                                 + (serverPort == 80 || serverPort == 443 ? "" : ":" + serverPort) + "/api/odk/formList"
 115                                                                 + node.getPath() + "</listUrl>");
 116                                                 sb.append("</xforms-group>");
 117                                         }
 118                                         String str = sb.toString();
 119                                         if (!str.equals("")) {
 120                                                 if (log.isDebugEnabled())
 121                                                         log.debug(str);
 122                                                 writer.append(str);
 123                                         }
 124                                 }
 125                         } catch (RepositoryException e) {
 126                                 e.printStackTrace();
 127                                 // TODO error message
 128                                 // resp.sendError(500);
 129                                 resp.sendError(503);
 130                         } finally {
 131                                 Jcr.logout(session);
 132                         }
 133
 134                 } else {
 135                         for (OdkForm form : odkForms) {
 136                                 StringBuilder sb = new StringBuilder();
 137                                 sb.append("<xform>");
 138                                 sb.append("<formID>" + form.getFormId() + "</formID>");
 139                                 sb.append("<name>" + form.getName() + "</name>");
 140                                 sb.append("<version>" + form.getVersion() + "</version>");
 141                                 sb.append("<hash>" + form.getHash(null) + "</hash>");
 142                                 sb.append("<descriptionText>" + form.getDescription() + "</descriptionText>");
 143                                 sb.append("<downloadUrl>" + protocol + "://" + serverName
 144                                                 + (serverPort == 80 || serverPort == 443 ? "" : ":" + serverPort) + "/api/odk/form/"
 145                                                 + form.getFileName() + "</downloadUrl>");
 146                                 sb.append("</xform>");
 147                                 String str = sb.toString();
 148                                 if (log.isDebugEnabled())
 149                                         log.debug(str);
 150                                 writer.append(str);
 151                         }
 152                 }
 153                 writer.append("</xforms>");
 154         }
 155
 156         public void addForm(OdkForm odkForm) {
 157                 odkForms.add(odkForm);
 158         }
 159
 160         public void removeForm(OdkForm odkForm) {
 161                 odkForms.remove(odkForm);
 162         }
 163
 164         public void setRepository(Repository repository) {
 165                 this.repository = repository;
 166         }
 167
 168 }